Following the announcement that the BrakeFast adaptor is going to be an Open Source Hardware product, and most unicycles are using the free ISIS crank interface standard, it got me thinking about whether there’d be any merit to having fully Open Source unicycle component designs.
Companies already often work together on elements of designs or products, or just use parts produced by another company but specifically designed for unicycles:
- Qu-Ax uses the KH design Eleven saddle
- The KH36 used to use a variation of the Nimbus Stealth2 rim with braking surface, now they use a standard Stealth 2 and in Europe a Qu-Ax King George tyre
- Florian Schlumpf worked with KH for the MUni Schlumpf hub
People have made freely available bicycle designs/components, why not unicycle components?
So, as some design practise, I’ve been making some parts (bearings, spacers, some hub parts, and a 36" Stealth 2 inspired rim so far).
I know people have created their own unicycle frames, freewheel hubs, geared hubs, 3D printed cranks and other accessories - how many of these are open designs? Would it be in any way useful to have these collated in one place for others to iterate on or work from in the future.
If anyone’s created something and would be happy for it to be an open design, but didn’t go any further than a paper napkin drawing, I’ll also put myself out there as being happy to recreate the part as a 3D model in Solidworks and/or FreeCAD.